power pole reverse voltage indicator
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I took one of the power pole voltmeters and hooked it up with reverse polarity. It drew no current, and it worked fine afterwards with correct polarity.
If a power pole circuit was hooked up backwards, the volt meter would be off. One might think that there was no voltage present.
So, I added a red LED, with current limiting resistor, to the voltmeter so that the LED would turn on if the polarity was reversed.
Attached is a photo with it hooked up with reverse polarity.
Harley
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Harley ki7xf